Licensed Heating & Air Conditioning (C-20) contractors in California

The California Contractors State License Board (CSLB) lists 8,936 California contractors classified C-20 (Heating & Air Conditioning (C-20)). Each entry below links to a full dossier with license status, insurance, bond, and enforcement — as of October 8, 2026.

Showing 2,281–2,340 of 8,936 contractors

1. City Air

   Glendale, CA · CSLB #979090 · as of October 8, 2026
   Active · clear
2. City Breeze

   Glendale, CA · CSLB #1090235 · as of October 8, 2026
   Active · clear
3. City Flow Heating And Air Conditioning

   Northridge, CA · CSLB #1086938 · as of October 8, 2026
   Active · clear
4. Citywide Heating & Cooling LLC

   Fontana, CA · CSLB #1093551 · as of October 8, 2026
   Active · clear
5. City Wide Plumbing Heating And Air Conditioning

   Moreno Valley, CA · CSLB #781759 · as of October 8, 2026
   Active · clear
6. CJ Air Conditioning & Heating Company

   Laguna Woods, CA · CSLB #898999 · as of October 8, 2026
   Active · clear
7. C J E Heating & Air Conditioning

   Redwood City, CA · CSLB #1000743 · as of October 8, 2026
   Active · clear
8. C & J Heating And Air Conditioning

   Riverbank, CA · CSLB #931419 · as of October 8, 2026
   Active · clear
9. C J Heating & Cooling

   Visalia, CA · CSLB #971721 · as of October 8, 2026
   Active · clear
10. C J'S Affordable Heating & Air Conditioning

    Imperial, CA · CSLB #993476 · as of October 8, 2026
    Active · clear
11. CJS Cooling Tower Services

    Norco, CA · CSLB #980549 · as of October 8, 2026
    Active · clear
12. C J'S Heating & Air Conditioning

    Valley Center, CA · CSLB #939344 · as of October 8, 2026
    Active · clear
13. C & K Heating & Air

    Tehachapi, CA · CSLB #1110453 · as of October 8, 2026
    Active · clear
14. Claddagh Refrigeration Company INC

    San Francisco, CA · CSLB #796321 · as of October 8, 2026
    Active · clear
15. Clarke Heating & Cooling

    Corona, CA · CSLB #821968 · as of October 8, 2026
    Active · clear
16. Harry Clark Plumbing And Heating INC

    Oakland, CA · CSLB #792463 · as of October 8, 2026
    Active · clear
17. Clark Heat And Air INC

    Orangevale, CA · CSLB #1028574 · as of October 8, 2026
    Active · clear
18. J Clark Heating & Cooling

    Sonoma, CA · CSLB #1090153 · as of October 8, 2026
    Active · clear
19. Clark Plumbing Heating And Airconditioning CO

    Valencia, CA · CSLB #277453 · as of October 8, 2026
    Active · clear
20. Clark Refrigeration

    Redding, CA · CSLB #832242 · as of October 8, 2026
    Active · clear
21. Clark & Sons Aire INC

    Ventura, CA · CSLB #1074723 · as of October 8, 2026
    Active · clear
22. Classic Air Mechanical

    Orange, CA · CSLB #1069650 · as of October 8, 2026
    Active · clear
23. Classic Heating & Air Conditioning

    Redlands, CA · CSLB #643710 · as of October 8, 2026
    Active · clear
24. Classic Heating And Air Conditioning

    Concord, CA · CSLB #960065 · as of October 8, 2026
    Active · clear
25. Classic Plumbing Heating & Air

    San Diego, CA · CSLB #1143182 · as of October 8, 2026
    Active · clear
26. Clayton Brothers Heating And Air INC

    Clayton, CA · CSLB #838282 · as of October 8, 2026
    Active · clear
27. Clayton Valley Mechanical Heating And Air Conditioning

    Clayton, CA · CSLB #507324 · as of October 8, 2026
    Active · clear
28. Clean Air Company INC

    San Jose, CA · CSLB #1156196 · as of October 8, 2026
    Active · clear
29. Clean Air HVAC INC

    Concord, CA · CSLB #829011 · as of October 8, 2026
    Active · clear
30. Clean Air Mechanical

    Buellton, CA · CSLB #705114 · as of October 8, 2026
    Active · clear
31. Clean Air Solutions

    Woodland Hills, CA · CSLB #1153130 · as of October 8, 2026
    Active · clear
32. Clean Breeze Air

    Fairfield, CA · CSLB #1074492 · as of October 8, 2026
    Active · clear
33. Clear Air Heating & Cooling INC

    Salinas, CA · CSLB #1125738 · as of October 8, 2026
    Active · clear
34. Clear Choice Plumbing & Drains

    Ramona, CA · CSLB #703999 · as of October 8, 2026
    Active · clear
35. Clearesult Heating And Air Conditioning

    Austin, CA · CSLB #1033591 · as of October 8, 2026
    Active · clear
36. Clear Flow Heating & Air INC

    Irvine, CA · CSLB #1083874 · as of October 8, 2026
    Active · clear
37. Clear Heating And Air INC

    El Cajon, CA · CSLB #1076034 · as of October 8, 2026
    Active · clear
38. Clearly Comfort LLC

    Draper, CA · CSLB #1125859 · as of October 8, 2026
    Active · clear
39. Clear Path Air Solutions

    Woodlake, CA · CSLB #1140882 · as of October 8, 2026
    Active · clear
40. Clemmer Services INC

    Barstow, CA · CSLB #652231 · as of October 8, 2026
    Active · clear
41. Clennair A/c & Heating

    Huntington Beach, CA · CSLB #509320 · as of October 8, 2026
    Active · clear
42. Clever Heating And Cooling

    San Francisco, CA · CSLB #1155494 · as of October 8, 2026
    Active · clear
43. CL Heating And Air INC

    Citrus Heights, CA · CSLB #1084345 · as of October 8, 2026
    Active · clear
44. Clifton Plumbing & Heating

    Sand City, CA · CSLB #979775 · as of October 8, 2026
    Active · clear
45. Climate Air Masters INC

    Anaheim, CA · CSLB #695854 · as of October 8, 2026
    Active · clear
46. Climate Brothers INC

    Santee, CA · CSLB #931151 · as of October 8, 2026
    Active · clear
47. Climate Care

    Glendale, CA · CSLB #914031 · as of October 8, 2026
    Active · clear
48. Climate Care INC

    Manteca, CA · CSLB #1009516 · as of October 8, 2026
    Active · clear
49. Climatech HVAC Services INC

    Oxnard, CA · CSLB #1147865 · as of October 8, 2026
    Active · clear
50. Climatech INC

    Los Angeles, CA · CSLB #1073460 · as of October 8, 2026
    Active · clear
51. The Climate CO Heating And Air

    Ukiah, CA · CSLB #1113355 · as of October 8, 2026
    Active · clear
52. Climate Concepts

    Alpena, CA · CSLB #817626 · as of October 8, 2026
    Active · clear
53. Climate Control

    Cupertino, CA · CSLB #651284 · as of October 8, 2026
    Active · clear
54. Climate Control

    Bakersfield, CA · CSLB #894659 · as of October 8, 2026
    Active · clear
55. Climate Control Air Conditioning And Heating INC

    Palos Verdes Estates, CA · CSLB #776331 · as of October 8, 2026
    Active · clear
56. Climate Control Heating And Air Conditioning

    Sylmar, CA · CSLB #1139790 · as of October 8, 2026
    Active · clear
57. The Climate Controllers A Partnership

    Ontario, CA · CSLB #953750 · as of October 8, 2026
    Active · clear
58. Climate Control Masters LLC

    Porterville, CA · CSLB #1159897 · as of October 8, 2026
    Active · clear
59. Climate Control Pros INC

    Mission Hills, CA · CSLB #1151879 · as of October 8, 2026
    Active · clear
60. Climate Control Solutions

    Las Vegas, CA · CSLB #1115137 · as of October 8, 2026
    Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of October 8, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.